router bgp 111
 bgp router-id 1.1.1.1
 network 1.2.3.0
 neighbor 2.2.2.2 route-map SETPATH out
 neighbor 2.2.2.2 remote-as 222
 neighbor 2.2.2.2 next-hop-self
 neighbor 2.2.2.2 soft-reconfiguration inbound
 neighbor 2.2.2.2 distribute-list 60 out
route-map SETPATH permit 10
  set as-path prepend 111 111 111
Искуственно удлиняем путь через 222 добавления текущего номера AS (111).